HMC344_09 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SP4T NON-REFLECTIVE SWITCH, DC - 8 GHz

v06.0709
Typical Applications
The HMC344 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military & Space
4
• Test Instrumentation
Functional Diagram
HMC344
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 8 GHz
Features
Broadband Performance: DC - 8 GHz
Non-Reflective Topology
Low Insertion Loss: 1.8 dB @ 6 GHz
Integrated 2:4 TTL Decoder
Small Size: 1.08 x 1.05 x 0.10 mm
General Description
The HMC344 is a broadband non-reflective GaAs
MESFET SP4T switch chip. Covering DC to 8 GHz,
this switch offers high isolation, low insertion loss,
and a compact form factor. This switch also includes
an on board binary decoder circuit which reduces
the number of required logic control lines to two. The
switch operates using a negative control voltage of
0/-5V, and requires a fixed bias of -5V. All data is tested
with the chip in a 50 Ohm test fixture connected via
0.025 mm (1 mil) diameter wire bonds of minimal length
0.31 mm (12 mils). This SP4T switch is also available
in SMT packaged form as the HMC344LC3.
4 - 20
Electrical Specifications, T_A = +25° C, With 0/-5V Control, Vee= -5V, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 6.0 GHz
DC - 8.0 GHz
1.8
2.1
dB
1.9
2.2
dB
Isolation
DC - 2.0 GHz
44
49
dB
DC - 4.0 GHz
37
42
dB
DC - 6.0 GHz
34
39
dB
DC - 8.0 GHz
30
35
dB
Return Loss
“On State”
DC - 2.0 GHz
10
14
dB
DC - 8.0 GHz
7
10
dB
Return Loss
“Off State”
DC - 8.0 GHz
7
10
dB
Input Power for 1 dB Compression
0.5 - 8.0 GHz
17
21
dBm
Input Third Order Intercept
(Two-Tone Input Power= +7 dBm Each Tone)
0.5 - 8.0 GHz
37
40
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
35
ns
150
ns
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com